Air Force Maj. Ryan Busbey, foreground, conducts a preflight check on an F-16 Fighting Falcon aircraft before participating in Red Flag 16-1 at Eielson Air Force Base, Alaska, May 4, 2016. Busbey is a pilot assigned to the 18th Aggressor Squadron. Red Flag is a field training exercise in which U.S. and allied forces provide joint offensive counter-air, interdiction, close air support and large force employment training in a simulated combat environment. Air Force photo by Staff Sgt. Shawn Nickel